Hybrid Frequency-dependent Hysteresis Model of Magnetostrictive Actuator

2nd International Conference on Materials Engineering and Nano Sciences

材料科学;物理学

Yang, Yikun^1 ; Yang, Bintang^1 ; Niu, Muqing^1

State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai

200240, China^1

关键词: Frequency dependent;    Frequency independent;    Generalized Prandtl-Ishlinskii models;    Hysteresis modeling;    Hysteresis non linearities;    Inherent frequencies;    Magnetostrictive actuator;    Optimization algorithms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/378/1/012013/pdf
DOI  :  10.1088/1757-899X/378/1/012013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The inherent frequency-dependent hysteresis nonlinearities of magnetostrictive actuator prominently limit its performance. In this paper, a hybrid hysteresis model comprising a frequency-independent hysteresis model cascaded an adaptive finite impulse response filter is developed to improve the performance of actuators. For the frequency-independent part, a generalized Prandtl-Ishlinskii model that have analytical inversion is adopted. Besides, a modified coral reefs optimization algorithm is applied to identify the parameters to improve the model accuracy. The adaptive filter is utilized to adapt to the rate-dependent characteristic. The model validation results show that the hybrid model can satisfactorily describe the frequency-dependent hysteresis.